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(No Model.) 3 sheets-sheet 2. G'. V. A. CVIER, FILS 8v G. GORAND. SORTING MACHINE FOR GLASSIPYING WOODEN STUPFS.

No. 347,264. K Patented Aug. l0, 1886.

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' i 3 Sheets-Sheet 3. V. A. GUVIBR.P1LS ai G. Go N NG MACHINE FORCLASSIFYING WUOD TU No. 347,264. Patented Aug. 10, 1886.

(No Model.)

UNITEDY STATES PATENT OFFICE.

GUsTAvE vICTOR ABEL cUvIER, E ILS, AND GEORGES GOURAND, OE SELON- COURT, (DOURS,) .ERANCE.

sommo-MACHINE FOR CLASSIFYING WOODEN sTUFFs.

SPECIFICATION forming part of Letters Patent N6. 347,264, dated August 10, 1886.

` Application filed May 10, 1856. Serial No. 201,731. (No model.)

To all whom it may concern: Y

Be it known that we, GUsTAvE VICTOR ABEL CUVIER, Fils, and GEORGES GoURAND,ci1izens of theFrench Republic, and residents of Seloncourt, (Doubs) in the French Republic, have invented certain new and useful improvements in a sorting-machine for classifying wooden stui's or any, other stuit` intended for the fabrication of paper or any other manufacture; and we do hereby declare the followingA to be 'a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeV and use the same, reference being had .to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to machines for grading and classifying pulp according to the nav ture and quality of paper to be produced therefrom; and it consists, essentially, in devices whereby the grading or classification is effected by projecting the pulp suspended in water upon the inner surfaces of a slowly-rotating perforated cylinder by means of a:rapidlyro tating agitator or agitators, thusv combining centrifugal force withagitation to effect the classification, substantially as hereinafter' fully described.

The invention further consists in the ar.- rangement and combination of the mechanicall devices and in combination therewith of means for preventing the meshes or p'erforations of the grading or classifying cylinder from becoming choked or obstructed by pulp, and for removing the graded or classified pulp, as well as the course pulp, from the apparatus, substantially as hereinafter fully described.

Referring to the accompanying three sheets of drawings, in which like letters indicate like parts wherever such may occur, Figure l is a top plan view; Fig. 2, a vertical axial longitudinal section; Fig. 3, a vertical transverse section on line x .fr of Fig. 2, and Fig. 4 a right end elevation of a machine for grading or classifying pulp embodying my invention.

The machine consists, essentially, of a vat or tank, T, of cylindrical form, preferably constructed in two sections, tt', the upper section, t', being secured to the lower section by means of bolts or allinea-joint and bolts. S0 as to adapt `form seats for ball-bearings b, for the purpose itfor removal from said lower half for the pur- `poseof gaining ready access to the grading or classifying cylinder or drum inclosed therein, for purposes presently explained. The upper or removable section is further provided with y doors t2, hinged thereto, as shown in Figs. l and 3, so that the mechanism containedin the tank may be readily inspected and its condition ascertained.

The vat or tank `has alateral conduit or discharge duct, D, from which the graded or assorted pulp is discharged, and in said duct is arranged a valve or gate, G, adapted to beset by means of a hand-lever, L, to regulate the level ofthe water in the tank T, as shown in Figs. 3 and 4.

At each end the tank T is provided with box or grooved bearings B, for purposes to be describedhereinafter. A

C is' the grading or sorting cylinder, that is composed of two heads, H and HFig. 2, a body of perforated sheet metal. or wire-cloth,

C', and of stirrer or agitator blades CZ. The headH has a tubular extension, h, and the head H has a like bell-mouthed extension, h. Both tubular extensions h and h are provided with annular grooved flanges hthat iit in the bearing boxes or grooves B of the tank T, and

So of reducing friction. Instead of ball-bearings vany other suitable rotary bearing maybe provided-as, for instance, rollers may be ernployed and pivoted loosely upon a suitable bearing-ring securedto the tank T, or in snitable standards, as will be readily understood. z At the right end of the tank is secured a semi-cylindrical receiver, R, Figs. 2 and 4, that supports the feed-piped?, in which is formed one of the bearings, s, for ashaft, S, that has its other bearing, s', at the opposite end of the machine on a like receiver, R', which is connected to a discharge duct or trough, D', into'which the coarser pulp is dis.` charged, as will presently appear.

The head H of the cylinder C forms a casing for aiiuid-elevator, which may beabucketwheel, or, as shown, a tympanum-wheel, W, Fig. 3, that elevates the coarser pulp mixed with or suspended in water and discharges it axially through the bell-mouth extension 7L into the receiverR.

IOO

Upon the shaft S is mounted an agitatator, A, composed of radial arms a and agitator-- blades a'. At its left end the shaft carries a step-pulley, S, Figs. l and 2, for varying its speed, and on its right end a piniomp.

The cylinder and shaft are rotated at different speeds by gearing, which consists of the gear-wheel w on extension h of cylinder-head H, a pinion, p,- on shaft S, a gearwheel, w', and a. pinion, p", on counter-shaft S2, Figs. 2 and 4, the wheel w meshing with pinion p, and the pinion p with wheel w', as shown.

The operation of the machine is as follows: The pulp to be sorted, mixed with or held in suspension in water, is fed to the apparatus through the feed-pipe l after the valve or gate has been set to maintain the level ofthe fluid compound or hpulp solution,,if we may so term it, at the proper height, said level va rying with the condition of the pulp and the degree of iineness of the pulp to be obtained. The shaft S is now rotated from any suitable prime motor through the belt-puil'ey S', thereby rotating the cylinder C through the pinion p, gear-wheel w', pinion p", and gear-wheel w, the speed for ordinary purposes heilig about ten to twelve rotations per minute for the cylinder and from one hundred and eighty to two hundred for the shaft S, Which speed may be varied within certain limits by shifting the driving-belt on the belt-pulley S. In this manner the agitator A is rotated at a considn erable speed comparatively with that of the cylinder C, thereby keeping the pulp in a state of subdivision and at the same ti me projecting it upon the inner perforated periphery of the cylinder with great velocity and force, the centrifugal action assisting the tangential forces inpassing the pulp through the meshes or perforations of the cylinder. To prevent these from becoming choked up with pulp, we arrange above the cylinder C, within the casing or tank T, a pipe, P', from which jets of wat-er, under pressure, are forced upon the perforated portion ofthe periphery of the cylinder, to clear its perforations or meshes, as shown in Figs. 2 and 3. As the pulp passes through these meshes or perforations,it is collected in the bottomof thetank and prevented from settling by the agitator-blades C2 on cylinder C, and as the level rises in the tank the surplus water and pulp iiow outover the valve or gate G, as shown in Fig. 2. The ooarser pulp that cannot pass through the meshes of the cylinder is taken up bythe tympanum and discharged for further reduction, as above described. When it is desired to change the cloth or perforated metallic shell or body C of the cylinder C for one coarser or ner, the upper halft, of the tank T is removed, the cloth removed from the cylinder and another substituted. For purposes of inspection of the interior of the tank T, the door t2 t2 is opened. If by accident the valve should be set to cause the level of the liquid to rise and flow out of the tubular extension h of the head H of said cylinder, such liquid would not run to waste, as it would be collected in the rcceiver R, from which it may be removed afterward, thus ensuring against a waste of pulp by reason of an overdow.

If desired, the cylinder C may be arranged on an inclined plane, instead of a horizontal plane, as shown. This may be found of advantage in grading or sorting the coaser grades of pulp when a more rapid tlow of the material through the machine maybe desirable.

Having now described our invention, what we claim, and desire to secure by Letters Iatent, is-

1. In a machine for sorting or grading pulp, the combination, substantially as de scribed, with a revolving pulp-strainer and an elevating-wheel arranged within and revolving with the strainer, of an inclosing tank or vessel, and an adjustable overilowvalve therefor, substantially as and for the purpose specified.

2. In a machine for sorting or grading pulp, a slowly-rotating perforated gradingcylinder in combination with a rapidlyrotating agitator or beater arranged within the cylinder, and ajetpipe arranged above said cylinder to deliver water-in jets and under pressure upon the periphery thereof', substantially as and for the purpose specited.

3. In a machine for sorting orgradingpulp, an inclosing tank or vessel provided with an adjustable overiiow gate or valve, in combination with a perforated gradingcylinder rotating within said tank and a beater or agitator rotating within the cylinder, as described, for the purpose specified.

4. The tank T, constructed in two sections, detachably connected together, and provided with the receptacle It, and the cylinder C, arranged to rotate within the tank and having a feed-pipe at one end and a discharge pipe or spout at the other emptying into said receptacle R', in combination with the shaft S, carrying a water-elevator arranged to discharge into the discharge-spout of the cylinlOO der, and the shaft S2, gearing w w and p p',

substantially as and for the purpose specified. In testimony that we claim the foregoing we have hereunto set our hands, this 22d day of September, 1885.

CUVIER, FrLs. GOURAND. Vitnesses:

FRDERIC HUNT, EMILE Mromn.. 

